Just before 5 p.m., the Modesto Police Department reports there was a smash-and-grab robbery at a jewelry store in the mall.

Despite several social media rumors about a possible shooting, the police department says there were no shots fired. Instead, police say the gunfire shoppers thought they heard was actually the robbers using a sledgehammer to smash display cases.

Some shoppers sustained minor injuries as they ran away from the jewelry store.

The police department reports the four men behind the robbery left the scene.

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Modesto officers have finished their investigation at the mall, which the police department says is now "safe and open for business." There will still be a police presence in the area through Sunday night.

Shooting scares caused at two additional California malls caused shoppers to run and hide Sunday.

Later Sunday, people thought there had been gunfire during an attempted robbery at a jewelry store at the Great Mall in Milpitas. That investigation is ongoing as officers continue to search the Bay Area mall. Milpitas police say there was no evidence of a shooter at the mall.

Great Mall of the Bay Area Update 3: At this time there is NO evidence of an active shooter incident at the GMBA. Officers are continuing to search the mall interior. #MilpitasPD